Hello dear

No you can't  get a free medical seat you need to pay the minimum government fees. Eventhough you have mentioned that you have got 436 marks your predicted rank is in between the range 167009 to 199159.  It is difficult to get an government seat .

You can visit the link given below to know about the colleges that you will get with your predicted rank

https://medicine.careers360.com/neet-college-predictor?utm_source=qna&utm_medium=neet_cp

All the best